I had the same problem with a k8s cluster. In my case, it turned out, this was the problem: https://bugs.launchpad.net/magnum/+bug/1744362
These two helped me fix the problem: https://ask.openstack.org/en/question/102214/software-deployment-in-heat-problem-with-os-collect-config/ https://bugs.launchpad.net/kolla-ansible/+bug/1762754
The problem was actually in heat config, not magnum.
I had the same problem with a k8s cluster. In my case, it turned out, this was the problem: /bugs.launchpad .net/magnum/ +bug/1744362
https:/
These two helped me fix the problem: /ask.openstack. org/en/ question/ 102214/ software- deployment- in-heat- problem- with-os- collect- config/ /bugs.launchpad .net/kolla- ansible/ +bug/1762754
https:/
https:/
The problem was actually in heat config, not magnum.